6 letter words:
forker13,
fervor12,
porker12,
prover11,
5 letter words:
poker11,
prove10,
frore8,
rover8,
repro7,
roper7,
4 letter words:
fork11,
kerf11,
perk10,
poke10,
pork10,
perv9,
prof9,
kore8,
fore7,
froe7,
over7,
rove7,
pore6,
repo6,
rope6,
3 letter words:
kef10,
kep9,
kop9,
fop8,
kor7,
oke7,
fer6,
foe6,
for6,
fro6,
ref6,
rev6,
voe6,
ope5,
per5,
pro5,
rep5,
err3,
ore3,
roe3,
2 letter words:
ef5,
fe5,
of5,
op4,
pe4,
er2,
oe2,
or2,
re2,